The catch however is that what we don’t have is a level of clear domination when it comes to single-card solutions. AMD was shooting to beat the GTX 295 with the 5870, but in our benchmarks that’s not happening. The 295 and the 5870 are close, perhaps close enough that NVIDIA will need to reconsider their position, but it’s not enough to outright dethrone the GTX 295. NVIDIA still has the faster single-card solution, although the $100 price premium is well in excess of the <10% performance premium.

Let’s get straight to the point, shall we? Today AMD is launching the 5970, their dual-GPU card that finishes building out AMD’s technical domination of the high-end market. With it AMD delivers the absolute victory over NVIDIA’s GTX 295 that the Radeon 5870 couldn’t quite achieve and at the same time sets the new high water mark for single-card performance.

This also marks the last AMD product introduction of the year. The rest of the Evergreen series, composing the sub-$100 low-end parts, will be launching next year.

AMD Radeon HD 5970

AMD Radeon HD 5870

AMD Radeon HD 5850

Stream Processors

2x1600

1600

1440

Texture Units

2x80

80

72

ROPs

2x32

32

32

Core Clock

725MHz

850MHz

725MHz

Memory Clock

1GHz (4GHz data rate) GDDR5

1.2GHz (4.8GHz data rate) GDDR5

1GHz (4GHz data rate) GDDR5

Memory Bus Width

2x256-bit

256-bit

256-bit

Frame Buffer

2x1GB

1GB

1GB

Transistor Count

2x2.15B

2.15B

2.15B

TDP

294W

188W

151W

Manufacturing Process

TSMC 40nm

TSMC 40nm

TSMC 40nm

Price Point

$599

$400

$300

The 5970 serves as the nowadays obligatory dual-GPU part. It is 2 Cypress dice mounted on a single, dual-slot video card. AMD clocks it at 725MHz core and 1GHz (4GHz effective) for the GDDR5 memory. The card comes equipped with 2GB of GDDR5, which is split between the two GPUs, giving it an effective memory capacity of 1GB. The card will be selling for $600, at least so long as vendors and retailers hold the line on MSRP.

In practice this makes the card something between a 5850 in Crossfire mode and a 5870 in Crossfire mode. The clocks are the same as the 5850, but here all 20 SIMD units are enabled. This is a 15% clockspeed difference between the 5970 and 5870CF, so officially the 5870CF will continue to be the faster setup. However as we’ll see in a bit, looking at the stock 5970 can be a bit deceiving.

This also brings up the matter of the name of the card. We asked AMD what happened to the X2 tag, and the answer is that they didn’t want to use it since the card was configured neither like a 5850 nor a 5870 – it was closer to a mythical 5860. So rather than call it an odd (or worse yet, wrong) name, AMD just gave it a new model number entirely. We suspect AMD wanted to be rid of the X2 name – their processors go up to X4 after all – but there you go as far as an official reason is concerned. It looks like special multi-GPU tags are now gone in both the NVIDIA and AMD camps.

Moving on, for power, the 5970 uses an 8pin and a 6pin power connector (although the 6pin sits on top of a spot silk-screened for anther 8pin). The TDP is 294W, bringing it in just under the 300W ATX limit. Idle power is 42W, thanks to AMD’s aggressive power optimizations present in the entire 5000 series.

As some of you may have noticed, in spite of the fact that this card is at least a pair of 5850s, it consumes less than the 320W (2x160W) such a setup would. In order to meet the 300W limit, AMD went and binned Cypress chips specifically for the 5970, in order to find chips that could operate at 725MHz at only 1.05v (the 5850 runs at 1.088v). Given the power creep coming from the 4800 series, binning for the best chips is the only way AMD could get a 300W card out.

AMD’s official guidance for this card is that the minimum requirements are a 650W power supply, and they recommend a 750W power supply. The recommended power supply will become more important later on when we talk about overclocking.

Finally, AMD is also launching Crossfire Eyefinity support with the 5970, and thus far only the 5970. Currently Eyefinity doesn’t work with Crossfire mode on any of AMDs cards due to driver limitations. The drivers that the 5970 will be shipping with enable Crossfire Eyefinity support on the 5970 for 22 games – currently AMD is using whitelisting and is enabling games on a case-by-case basis. Crossfire Eyefinity will make its way in to the mainstream Catalyst drivers and be enabled for other cards early next year.

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114 Comments

Well my thought is that if amd would release this card on SOI/HK-MG in 32/28nm MCM config at 4 GHz it would leave nvidia wondering what it did to deserve it. And I wonder ... why the heck not? These cards would be business-grade-able and with a decent silicon they could ask for enormous prices. Plus they could probably stick the entire thing in dual config on one single card (possibly within the 300 W pcie v2 limit)... that would be a 40-50 Tflops card and with the new GDDR5(5ghz +) it should qualify as a damn monster. I would also expect a ~2-3k$ per such beast but I think its worth it. 50Tf/card, 6cards/server... 3Pflop/cabinet... hrm... well...it wouldn't be fair to compair it to general purpose supercomputers... buuut you could deffinatelly ray trace render avatar directly into HD4x 3d in realtime and probably make it look even better in the process... Reply

Clearly nobody buying this card is going to put Crysis on "Gamer Quality" They'll put it on the max it can go. Why is AT still the only tech site in the whole world who is using "Gamer quality" with a card that has enough power to run a small town? Reply

I'm a professional L4D player, and I know the Source engine gives out very high frame rate on today cards. The test become silly because there is no different at all from 60 to 300+ fps. So, it all comes down to min fps.

I suggest that you record a demo in map 5 Dead Air, with 4 Survivors defend with their back onto the limit line of the position of the first crashed plane. The main player for the record will be vomitted on by boomer, another throws pipe bomb near him, another throws molotov near him also. Full force of zombies (only 30), 2 hunters, 1 smoker, 1 tank attacking. (When a player become a tank, the boss he's controlling become a bot, and still attacking the survivors).

This is the heaviest practical scene in L4D, and it just makes sense for the benchmark. You dont really need 8 players to arrange the scene, I think using cheats is much easier.

I know it will take time to re-benchmark all of those cards for the new scene, but I think it wont be too much. Even if you cant do this, please reply me.